The Hit-Air Buckle Extenders can be used to adjust the fit Hit-Air systems to ensure a perfect fit. They are compatible with Hit-Air motorcycle, equestrian, boating, and other Hit-Air branded products.
Classic: small buckle pair, for vest with the same size top and bottom buckle (MLV/MLV2/SV2/LV/SV3)
VHR/H: small and large buckle, for vest with top buckle smaller and bottom larger
ST: for vest with specialty top buckle closer with larger buckle for bottom